| 2024 | Tokyo, Japan |
| 2023 | Montreal, Canada |
| 2021 | Virtual World Congress |
| 2018 | Vienna, Austria |
| 2016 | Seoul, Korea |
| 2014 | Vancouver, Canada |
| 2012 | Stockholm, Sweden |
| 2010 | Hong Kong, China |
| 2008 | Munich, Germany |
| 2006 | Chicago, USA |
| 2004 | Paris, France |
| 2002 | Montreal, Canada |
| 2000 | Brussels, Belgium |
| 1998 | Glasgow, Scotland (Great Britain) |
| 1996 | Melbourne, Australia |
| 1994 | Washington, USA |
| 1992 | Nice, France |
| 1990 | Kyoto, Japan |
| 1988 | Munich, Germany |
| 1986 | San Juan, USA |
| 1984 | Florence, Italy |
| 1982 | Jerusalem, Israel |
| 1980 | Gothenburg, Sweden |
| 1978 | Vienna, Austria |
| 1976 | Quebec, Canada |
| 1974 | Paris, France |
| 1972 | Copenhagen, Denmark |
| 1970 | Prague, Czechoslovakia |
| 1968 | Tarragona, Spain |
| 1966 | Washington, USA |
| 1964 | Birmingham, UK |
| 1962 | Munich, Germany |
| 1960 | Basel, Switzerland |
| 1958 | Rome, Italy |
| 2026 | Glasgow, UK |